Sigourney recently teased Alexandra as "really smart and very in charge", and showrunner for the series Marco Ramirez has confirmed that Marvel's latest villain will be an "utter badass".

Revealing a similarity between Sigourney and her character, Ramirez said: "Sigourney is the kind of person you can buy as the smartest person in the room, who you can also buy as a person holding a flamethrower.

Aside from being billed as a "powerful force in New York City", the origin and nature of Alexandra is pretty much a mystery at this point - but rest assured she'll be a worthy villain.

"We knew it would take something massive to pull these four characters from their individual worlds to work together," Ramirez admitted. "But also small enough that it felt like it existed in our world."